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868MHz Propagation problem
Mark wrote:
On Oct 24, 2:00 pm, "Paul Hovnanian P.E." wrote: wow so many of these replies are wrong.. This is normal when antenna "theory" comes up. in almost all cases, RF path losses are RECIPROCAL. I agree, including the antenna gains (meaning that the antennas at each end don't have to match). (even a 1/2 silvered mirror is reciprocal to light) Well that guy is usually on a differet page. As some have said, the cause of your issue is probably interference to the outside receiver. That's what I think is the most likely cause. The guy outside probably has his Nextel phone with him. ;-) Or maybe something about the indoor setup is causing the indoor Tx to operate at lower power. I suppose that's possible too. The OP should make sure the power supplies are equivalent (meaning that the output power would suffer more than the receiver gain with a drooping supply). So check the indoor supply. It is very unusual for RF path loss to be non-reciprocal. |
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